/*
 * Copyright 2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.springframework.cloud.dataflow.core;

import java.net.URI;

import javax.persistence.AttributeConverter;
import javax.persistence.Converter;

import org.springframework.util.StringUtils;

/**
 * Convert URI to strings, used by the repository to ser/deser URI fields in Hibernate.
 *
 * @author Christian Tzolov
 */
@Converter(autoApply = true)
public class UriPersistenceConverter implements AttributeConverter<URI, String> {

	@Override
	public String convertToDatabaseColumn(URI entityValue) {
		return (entityValue == null) ? null : entityValue.toString();
	}

	@Override
	public URI convertToEntityAttribute(String databaseValue) {
		return (StringUtils.hasLength(databaseValue) ? URI.create(databaseValue.trim()) : null);
	}
}
